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Home >> Jeep >> 2017 >> Wrangler Sahara, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 56 ((Radio Frequency (RF Hub) Module - Electrical Diagnostics)) >> DTC Troubleshooting >> U1433-00-Implausible Ignition Switch Status Message Received >> Set Condition

Set Condition

WARNING: This page is about a different car, the 2017 Jeep Cherokee. However, it is still accessible from the selected car via links, so may be relevant.

The Radio Frequency Hub (RF Hub) receives a Bussed Input message of the Ignition Switch status from the Body Control Module (BCM). If that message does not agree with the RF Hub Ignition Switch status, this code will set. The BCM also sends a Ignition Switch Sense message (hard wired F20 circuit). If the RF Hub and the BCM do not agree on Both of those messages, the PCM will not allow the engine to start.

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